package com.cw.config;

import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;

import java.time.LocalDateTime;

/**
 * 对自动填充赋值
 * @author ZhangWenhe
 * @create 2022-09-15 20:54
 */
@Component
@Slf4j
//自定义的元数据对象处理器
public class MyMetaObjecthandler implements MetaObjectHandler {


    /**
     * 在添加操作前自动注入
     * @param metaObject
     */
    @Override
    public void insertFill(MetaObject metaObject) {
        log.info("公共字段自动填充  insert");
        log.info(metaObject.toString());
        metaObject.setValue("createTime", LocalDateTime.now());
        metaObject.setValue("updateTime", LocalDateTime.now());
        metaObject.setValue("createUser", BaseContext.getCurrentId());
        metaObject.setValue("updateUser", BaseContext.getCurrentId());
    }

    /**
     * 更新操作自动填充
     * @param metaObject
     */
    @Override
    public void updateFill(MetaObject metaObject) {
        log.info("公共字段自动填充  update");
        log.info(metaObject.toString());
        metaObject.setValue("updateTime", LocalDateTime.now());
        metaObject.setValue("updateUser", BaseContext.getCurrentId());
    }
}
